JPS6320917Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to a ventilation fan whose front side is opened and closed by a decorative body.

(Prior art) Ventilation fans generally have a decorative frame removably attached to the front of the main body, but this decorative frame has a ventilation opening called a bell mouth. Even when the operation of the ventilation fan is stopped, the internal ventilation blades, motor, etc. can be seen through the bell mouth, causing a problem in that the appearance is spoiled.

As a solution to this problem,
There is a ventilation fan described in Publication No. 28031. this is,
A decorative body is provided on the front of the decorative frame so that it can be opened and closed, and when the ventilation fan stops operating, the decorative body covers the front of the decorative frame so that the ventilation blades, motor, etc. are not visible. A connecting rod provided on the main body to open and close the shutter on the rear of the main body and a decorative plate are connected together by a link, and by operating the connecting rod with a drawstring, decorations are created in conjunction with the opening and closing of the shutter. The body is configured to open and close.

(Problem to be solved by the invention) However, in the above-mentioned opening/closing configuration of the decorative body, since the decorative body is integrally connected to the connecting rod provided on the main body via a link, it is difficult to remove the decorative frame from the main body. Even so, it is extremely difficult to remove the ornament from the main body. For this reason, the decorative frame and decorative body must be cleaned while they are attached to the main unit, which can be extremely difficult to clean, especially if the ventilation fan is installed high on the room wall. Become.

In addition, in order to lower the decorative frame and decorative body to the floor and clean it, you can either remove the entire ventilation fan from the room wall or remove the pin connecting the link and the decorative body, but this work is extremely difficult. Therefore, it is inappropriate to force ordinary users to perform such difficult work.

This idea was made in view of the above circumstances.
The purpose is to provide a ventilation fan in which the decoration body can also be easily removed from the main body by removing the decorative frame from the main body.

[Structure of the invention] (Means for solving the problems) The ventilation fan of the invention has a main body equipped with air blowing blades, a decorative body provided on the front that can be opened and closed, and detachably attached to the front of the main body. A decorative frame is provided on the decorative frame side including a main body side mechanism portion having a displacement transmitting member and a decorative body, and at least when the decorative body is in a closed state, one end side of the decorative frame passes through a slit formed in the decorative frame. The decorative body opening/closing mechanism includes a decorative frame side mechanical part having a link projecting toward the main body, and an operating mechanism provided on the main body to operate the main body side mechanical part of the decorative body opening/closing mechanism.

The displacement transmitting member of the main body side mechanism portion of the decorative body opening/closing mechanism transmits its operational displacement to the decorative body and opens the decorative body under the state of contact between the displacement transmitting member and the decorative frame side mechanical portion.

(Function) When the main body side mechanism part of the decorative body opening/closing mechanism is operated by the operation mechanism, the operational displacement of the displacement transmission member of this main body side mechanism part changes to the decoration under the state of contact with the decorative frame side mechanical part. It is transmitted to the body, and the decorative body opens.

Since the displacement transmitting member of the main body side mechanism part transmits information to the decorative body when in contact with the decorative frame side mechanism part, the decorative frame side mechanism part is connected to the displacement transmitting member with a pin or the like. There's no need to. Therefore,
Since the decorative frame and the decorative body are inherently disconnected from the main body, by removing the decorative frame from the main body, the decorative body can also be removed from the main body.

(Example) The following Figures 1 to 7 are for the first embodiment of the present invention.
This will be explained with reference to the figures. First, in FIGS. 1 and 2, reference numeral 1 denotes a main body, which consists of an outer frame 2 built into a room wall with blades 4 rotatably driven by a blower motor 3. 3 on the rear of 2
Two shutters 6 are pivotally supported. 7 is a decorative frame, which has a bell mouth 8 (see FIG. 7) in the center, and this decorative frame 7 is elastically engaged with a flange 2a formed on the front surface of the outer frame 2 by fitting. It is attached removably. Reference numeral 9 denotes a decorative body, which is rotatably attached to the upper front surface of the decorative frame 7 by hinges 10, 10, so that the decorative body 9 rotates to cover the front surface of the main body 1. It is designed to open and close. 11 is a shutter opening/closing mechanism, which is constructed as follows. That is,
12 is an L-shaped connecting lever;
This vertical portion is connected to each shutter 6 through a pin 6a, and connection with the pin 6a of the lower two shutters 6 is achieved by inserting the pin 6a into the horizontally long hole 12a. It is being carried out.
Note that a spring 13 is stretched between the connecting lever 12 and the outer frame 2, and this spring always biases the shutter 6 in the closing direction via the connecting lever 12. Reference numeral 14 denotes a rotating body having a substantially L-shape, which is formed so that the length ratio of one side 14a to the other side 14b, that is, the lever ratio, is a predetermined ratio. The bent portion is rotatably supported on the side of the outer frame 2 via a shaft pin 14c. Further, a sliding pin 15 is attached to the tip of one long side 14a of the rotary body 14, and a connecting hole 16 is formed therein. 1
Reference numeral 7 denotes a connecting rod, which is rotatably supported by the tip of the other side 14b of the rotating body 14 and the horizontal portion of the connecting lever 12, thereby connecting the two. The shutter opening/closing mechanism 11 is constructed as described above.

On the other hand, 18 is a decorative body opening/closing mechanism, which consists of a decorative frame side mechanism part 19 provided on the decorative frame 7 side including the decorative body 9, and a main body side mechanism part 20 provided on the main body 1 side. In this embodiment, the decorative frame side mechanism part 19 is composed of a link 21 whose one end is vertically attached to the upper part of the back surface of the decorative body 9. When in the closed state, the slit 22 formed in the decorative frame 7
The free end side, which is one end side, is in a state of protruding toward the main body 1 side. In addition, the main body side mechanism part 2
0 is for transmitting the operating displacement given from the operating mechanism 23, which will be described in detail later, to the link 21, and in this embodiment, the main body side mechanism portion 20 is used to transmit the rotating body 14 of the shutter opening/closing mechanism 11 to the link 21. It is configured so that it can be used as is as a displacement transmitting member, that is, a displacement transmitting member. And the first
As can be seen from the figure, when the decorative frame 7 is attached, the sliding pin 15 of the rotating body 14 contacts the upper side of the link 21 of the decorative body 9 and is in a state of being linked with the rotating body 15. Here, the opening/closing stroke of the shutter 6 is represented by the dimension L ₁ in FIG. 1, and the opening/closing stroke of the decorative body 9 is represented by the dimension L ₂ (L ₂ >L ₁ ) in the same figure.
The lever ratio of the rotating body 14 is set to be the ratio of the opening/closing stroke L ₁ of the shutter 6 to the opening/closing stroke L ₂ of the decorative body 9.

The operating mechanism 23 is composed of a drawstring 25 having a locking ball 24 and a lock portion 26 attached to the front lower part of the outer frame 2, and one end of the drawstring 25 is connected to a connecting hole in the rotating body 14. 16, and a portion extending from one middle portion to the other end is suspended outside the decorative frame 7 through the lock portion 26. Further, as shown in FIGS. 3 and 4, the lock portion 26 includes a main body case 27, an engaging element 28 provided in the main body case 27 so as to be movable up and down, and the engaging element 28 that is always moved upwardly. A biasing spring 29 and a locking spring 30 that locks the engaging element 28
The engaging element 28 has a sphere holding recess 28a and a retaining protrusion 28b formed in its upper part, and a heart-shaped engaging part 28c formed in its side part. Furthermore, a switch 33 consisting of a fixed contact piece 31 and a movable contact piece 32 is provided inside the lock portion 26, and this switch 33 is opened and closed by a pusher 34 formed on the engaging element 28. The blower motor 4 is turned off and energized.

In the above configuration, when the pull string 25 of the operating mechanism 23 is pulled and operated from the state shown in FIG. After being rotated, it is moved downward, and as a result, the fifth
After passing through the state shown in the figure, the shutter 6 is opened as shown in FIG. At this time, the link 21 is pushed down by the sliding pin 15 of the rotating body 14, so the rotational displacement of the rotating body 14 is transmitted to the link 21, and the decorative body 9 is moved in conjunction with the opening of the shutter 6. It is opened as shown in FIGS. 6 and 7. Here, the lock portion 26
In this case, the locking ball 24 of the drawstring 25 enters the ball holding recess 28a of the engager 28 shown by the two-dot chain line in FIG. 3 and moves the engager 28 downward, and the engager 28 is moved as shown by the solid line. At this point, the locking spring 30 engages the heart-shaped engagement portion 28c to anchor the engager 28 in that position. At this time, the locking ball 24 is prevented from coming out by the retaining protrusion 28b, so that the shutter 6 and the decorative body 9 are locked in the open state via the drawstring 25. At the same time, the switch 33 is closed by the pusher 34, the blower motor 4 is energized, and ventilation operation is started. Also, in this case, the lever ratio of the rotating body 14 is set to be the ratio of the opening/closing stroke L ₁ of the shutter 6 to the opening/closing stroke L ₂ of the decorative body 9, so the shutter 6 and the decorative body 9 are At the same time, both become fully open. The above-mentioned lock is released by the next pulling operation of the drawstring 25, and as a result of this release of the lock, the rotating body 14 is rotated by the spring 13 in the opposite direction of arrow A, so that the shutter 6 is moved to the first position.
At the same time as it returns to the closed state shown in the figure, the ornament 9 rotates under its own weight and returns to the closed state shown in Fig. 1, and
The switch 33 is opened and the ventilation operation is stopped.

In the above configuration, in order to remove the decorative frame 7 and the decorative body 9 from the main body 1 for cleaning, the decorative frame 7 is pulled forward to release the elastic engagement with the flange 2a of the outer frame 2. 7 can be removed from the main body 1. That is, the link 21 of the decorative body 9 provided on the decorative frame 7 and the sliding pin 15 of the rotating body 14 provided on the main body 1 are simply in contact with each other, and there is no member that connects them. Therefore, by removing the decorative frame 7 from the main body 1 as shown in FIG. 2, the decorative body 9 can also be easily removed from the main body 1 at the same time. After cleaning, the decorative frame 7 is elastically engaged with the flange 2a of the outer frame 2, and the main body 1
If the decorative body 9 is attached to the main body 1, the link 21 of the decorative body 9 will come into contact with the sliding pin 15 of the rotating body 14 provided on the main body 1, so that the decorative body 9 will not be supported when opening and closing.

As described above, according to this embodiment, since the decorative frame 7 and the decorative body 9 can be easily attached and detached, the decorative body and the link are integrally connected by a pin as in the conventional case.
Unlike the case where the decorative frame and decorative body had to be cleaned while attached to the main body unless the extremely troublesome and difficult work of removing the pins was performed, the decorative frame 7 and the decorative body 9 could be easily removed from the main body 1. It can be easily removed and cleaned at any desired location, such as the kitchen.

By the way, from the operation mechanism 23 to the decorative body opening/closing mechanism 1
In order to transmit the operational displacement (rotational displacement of the rotating body 14) applied to the decorative body 8 to the decorative body 9 to open and close it, any member constituting the decorative body opening/closing mechanism 18 must be connected to the decorative frame 7. Slit 2 formed in
2 must be penetrated. For example, in this embodiment, the link 21 is rotatably supported on the main body 1 side, and one end of the link 21 is passed through the slit 22 of the decorative frame 7 to abut against the back surface of the decorative body 9. Assuming that, in this case, the decorative frame 7
The slit 22 must be inserted and removed from the link 21 each time the link 21 is attached or removed, which is troublesome, and if the decorative frame 7 in the hand is not moved straight back and forth, excessive force will be applied to the link 21. Tsute link 2
There is a possibility that 1 may be deformed. In contrast, in this embodiment, the decoration opening/closing mechanism 18 is divided into a decorative frame side mechanism part 19 and a main body side mechanism part 20, and the link 21 of the decorative frame side mechanism part 19 is attached to the decoration body 9. In the closed state of body 9, this link 2
Since the link 1 is configured to pass through the slit 22, there is no need to insert or remove the link 21 into or out of the slit 22 when attaching or detaching the decorative frame 7 (attachment or detachment of the decorative frame 7 is performed with the decorative body 9 in the closed state). The attachment/detachment operation is easy, and there is no risk of deformation of the link 22.

Next, FIGS. 8 and 9 show a second embodiment of the present invention. In this second embodiment, in place of the decorative body 9 of the first embodiment, two pieces having a vertical width approximately half of that of the first embodiment are used. Decorative bodies 35, 35 are provided above and below, and both decorative bodies 35, 35 are adapted to be interlocked by a connecting lever 36. In addition to producing the same effects as in the first embodiment, this embodiment also has the upper and lower widths of the ornaments 35, 35 approximately half that of the ornament 9 of the first embodiment, so that the ornaments 35, 35 This has the effect of significantly reducing the force required to open the door.

[Effects of the invention] As explained above, according to the ventilation fan of the invention,
The decorative body opening/closing mechanism is provided with a main body side mechanism part having a displacement transmission member provided on the main body side and a decorative frame side including the decorative body, which passes through a slit formed in the decorative frame at least when the decorative body is in the closed state. It is composed of a decorative frame side mechanism part having a link whose one end side protrudes toward the main body side, and the operational displacement of the displacement transmission member is
Since the displacement is configured such that the displacement is transmitted to the decorative frame side mechanism part when the displacement transmission member is in contact with the decorative frame side mechanism part, a member that connects the main body side mechanism part and the decorative frame side mechanism part is used. does not exist, therefore,
By simply attaching and detaching the decorative frame to the main body, the decorative body can also be attached and detached at the same time. Therefore, the decorative frame and the decorative body can be easily removed from the main body and cleaned easily, and the links can be easily removed. Unlike the ones provided on the main body side, there is no need to insert and remove links into the slits of the decorative frame each time the decorative frame is attached or removed, making attachment and detachment of the decorative frame much easier. This has excellent effects such as there is no risk of deformation.

[Brief explanation of the drawing]

Figures 1 to 7 show a first embodiment of the present invention, with Figure 1 being a longitudinal cross-sectional side view showing the decorative body in the closed state, and Figure 2 showing the main body and decorative frame separated. 3 and 4 are longitudinal sectional front views and longitudinal sectional side views of the lock portion, 5 is a vertical sectional side view of the ornament in a half-open state, and 6 and 7 are sectional views of the ornament. FIG. 3 is a longitudinal sectional side view and a perspective view of the body in an open state. Further, FIGS. 8 and 9 are views corresponding to FIGS. 1 and 6, respectively, showing a second embodiment of the present invention. In the figure, 1 is the main body, 4 is the blade, 6 is the shutter, and 7
1 is a decorative frame, 9 is a decorative body, 11 is a shutter opening/closing mechanism, 14 is a rotating body (displacement transmission member), 18 is a decorative body opening/closing mechanism, 19 is a decorative frame side mechanism part, 20 is a main body side mechanism part, 21 is a link , 22 is slit,
23 is an operating mechanism, 25 is a drawstring, and 35 is a decorative body.

Claims (1)

[Scope of utility model registration request] A main body equipped with air blowing blades, a decorative frame with an openable and closable decorative body on the front surface and detachably attached to the front surface of the main body, and a main body side mechanism part provided on the main body side and having a displacement transmitting member. and an opening/closing decorative body comprising a decorative frame-side mechanism portion that is provided on the decorative frame side containing the decorative body and has a link that penetrates a slit formed in the decorative frame and protrudes toward the main body at one end, at least when the decorative body is in the closed state. a mechanism, and an operating mechanism provided on the main body to operate the main body side mechanism part, which displaces the displacement transmitting member when the operating mechanism is operated, and also displaces the displacement transmitting member and the decorative frame side mechanism part. A ventilation fan characterized in that, in a state of contact, the operational displacement of the displacement transmitting member can be transmitted to the decorative body to open the decorative body.